What is the atomic number of Erbium?

The atomic number of Erbium (Er) is 68.

What is the atomic mass of Erbium?

The atomic mass of Erbium is 167.26 atomic mass units (u).

What group and period is Erbium in?

Erbium is in period 6, group 0 of the periodic table. It is a lanthanide element in the f-block.

How many valence electrons does Erbium have?

Erbium has 3 valence electron(s).

Erbium (Er) — Atomic Number 68 | Soren Periodic Table

Q: What is the electron configuration of Erbium?

The electron configuration of Erbium is [Xe] 4f12 6s2.

Erbium (Er) — Atomic Number 68Fiber optic amplifiers, pink glass.Erbium Properties

Atomic Number: 68

Symbol: Er

Atomic Mass: 167.26 u

Category: lanthanide

Group: 0

Period: 6

Block: f-block

Electron Configuration: [Xe] 4f12 6s2

Valence Electrons: 3

Electronegativity: 1.24

Ionization Energy: 589.3 kJ/mol

Electron Affinity: 50.0 kJ/mol

Atomic Radius: 226.0 pm

Melting Point: 1802.0 K

Boiling Point: 3141.0 K

Erbium in the Periodic TableErbium is a lanthanide element located in period 6, group 0 of the periodic table. It has the chemical symbol Er and atomic number 68. The electron configuration of Erbium is [Xe] 4f12 6s2, giving it 3 valence electron(s).Interactive Erbium LearningExplore Erbium in interactive 3D with the Soren Periodic Table. View Bohr model, quantum orbital model, nucleus inspector, and phase lab with temperature and pressure controls. Includes fun facts, real-world uses, and NCTB curriculum integration for Bangladeshi students.